针对船舶直流组网系统中柴油发电机整流器与储能双向DC/DC变流器的功率分配、蓄电池组SOC均衡问题，设计一种双模式下的储能双向DC/DC变流器控制策略。在仅蓄电池组供电模式下，采用基于SOC差值的自适应下垂系数控制策略，并结合模糊控制理论设计变加速因子均衡方法；在蓄电池组与柴油发电机并联供电模式下，利用蓄电池响应瞬时功率变化，运用模型预测控制方法对电流控制环进行了优化。结果表明，该控制策略能够实现功率精确分配、加速蓄电池均衡，并提升系统动态响应能力。
A dual-mode control strategy for the bidirectional DC/DC converter in the energy storage system was designed to address the power distribution between the diesel generator rectifier and the bidirectional DC/DC converter, as well as the SOC balancing of the battery pack in a shipboard DC grid system. In the battery-only power supply mode, an adaptive droop coefficient control strategy based on SOC differences was adopted, and a variable acceleration factor balancing method was designed by incorporating fuzzy control theory. In the parallel power supply mode with both the battery pack and the diesel generator, the battery was utilized to respond to instantaneous power changes, and the model predictive control method was applied to optimize the current control loop. The results demonstrate that this control strategy can achieve precise power distribution, accelerate battery balancing, and enhance the dynamic response capability of the system.
2025,47(22): 148-154 收稿日期：2025-2-22
DOI：10.3404/j.issn.1672-7649.2025.22.021
分类号：U665.1
作者简介：朱鑫祥（1997 – ），男，硕士研究生，研究方向为轮机仿真及自动化
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